Shareholders' Equity (Tables)

9 Months Ended

Sep. 30, 2018

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

The changes, pretax and net of tax, in each component of accumulated other comprehensive loss (AOCL) consisted of the following:

	Losses on Cash Flow Hedges			Unrealized Gains on Marketable Securities			Foreign Currency Translation Adjustments			Changes in Retirement Plans’ Funded Status			AOCL
December 31, 2017	$	(94	)	$	19		$	402		$	(3,147	)	$	(2,820	)
Cumulative effect adjustments (see Note A)	(4		)	(19		)	—			(615		)	(638		)
Other comprehensive income, pretax	40			—			(130		)	247			157
Provision for income tax, net	(8		)	—			—			(52		)	(60		)
Other comprehensive income, net of tax	32			—			(130		)	195			97
September 30, 2018	$	(66	)	$	—		$	272		$	(3,567	)	$	(3,361	)

December 31, 2016	$	(345	)	$	14		$	69		$	(3,125	)	$	(3,387	)
Other comprehensive income, pretax	286			8			409			193			896
Provision for income tax, net	(73		)	(2		)	(15		)	(70		)	(160		)
Other comprehensive income, net of tax	213			6			394			123			736
October 1, 2017	$	(132	)	$	20		$	463		$	(3,002	)	$	(2,651	)